Important notice regarding use of cookies: By continuing to use this site, you agree to our use of cookies as described in our Digital Privacy and Cookies Policy. Brokerage products and services are offered through Wells Fargo Advisors.
Two pressures are measured for a blood pressure reading 1  : Systolic blood pressure is a measure of blood pressure while the heart is beating. 2  Diastolic pressure is a measure of blood pressure while the heart is relaxed.
In the last few years, however, research has emerged that points to the systolic number as important as well, and perhaps more indicative of damage to your cardiovascular system than the diastolic number. In a blood pressure reading, the diastolic number is the force of blood against your artery walls while your heart is at rest (in between heartbeats).